Ramesh bought two boxes for Rs 1300. He sold one box at a profit of 20% and the other box at a loss of 12%. If the selling price of both boxes is the same, find the cost price of each box.
Cost price of two boxes = Rs. 1300
Let cost price of one box = Rs. X
∴ Cost price of other box = Rs. 1300 – x
Selling price of first box = 
Selling price of second box = 
We have,
= 
= 
= 
Hence,
Cost price of first box = Rs. 550
Cost price of second box = 1300 – 550 = Rs. 750
8